staging: rtl8712: Fix enqueue_reorder_recvframe()

The logic of this function was accidentally broken by a checkpatch
inspired cleanup.  I've modified the code to restore the original
behavior and also make checkpatch happy.

Fixes: 98fe05e2 ("staging: rtl8712: Remove unnecesary else after return statement.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200929103548.GA493135@mwandaSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8712/rtl8712_recv.c

@@ -476,10 +476,13 @@ static int enqueue_reorder_recvframe(struct recv_reorder_ctrl *preorder_ctrl,
 	while (!end_of_queue_search(phead, plist)) {
 		pnextrframe = container_of(plist, union recv_frame, u.list);
 		pnextattrib = &pnextrframe->u.hdr.attrib;
+
+		if (SN_EQUAL(pnextattrib->seq_num, pattrib->seq_num))
+			return false;
+
 		if (SN_LESS(pnextattrib->seq_num, pattrib->seq_num))
 			plist = plist->next;
-		else if (SN_EQUAL(pnextattrib->seq_num, pattrib->seq_num))
-			return false;
+		else
 			break;
 	}
 	list_del_init(&(prframe->u.hdr.list));